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rescue data oracle database

rescue data oracle database

 
I am running two node RAC Oracle Database 11g, we had issue with shared storage - controller failure. After replacing the controller I see the ASM groups but the database is not starting due to errors. What is the best way to salvage the data ? I need some company that provides service to export several objects from one schema in the database. I believe that most of the database is unaffected by the controller failure, and I need to salvage the data from there.
Anyone has good experience with such company / service ?
 
 
What are the exact errors that you get ?
Do you have any backups for this database ?

Normally the best way "to salvage data" is simply to restore from backup. If you don't have any backup and have an Oracle Support contract you can ask Oracle Support for help: they have a tool named DUL for this kind of problems. See also http://www.oracle-internals.com/?p=17%20Blvd.

 
PRM-DUL can be another option : http://www.parnassusdata.com/en/oracle-dul